If you have ever sent a text message, then you know how to Tweet. Think of Twitter as a way to send a text message to a bunch of people at once.

Twitter has evolved into a platform that professionals use to build meaningful personal learning networks because it allows people to share links to articles and other resources. The cool thing about Twitter is that it allows you direct access to what someone posts, even if that person doesn't follow you back.

Do not search the Internet; search people. So rather than sift through a bunch of information (some good, some bad) online, sometimes it's better to identify people who are experts in specialized areas and follow their recommendations.